. >>> president obama expected to name his close aide, dennis mcdonough as new chief of staff. he will replace jack lew, who was nominated to be new treasury secretary. >>> check your flights. winter storm warnings in effect today from mississippi to washington, d.c. places you don't normally hear. meteorologist jennifer delgado looks at that. >> we're tracking snow out there. most of us dealing with rain we have to wait for cold air catching up. we show you right now, wider view, rain from delaware to wider areas, including parts of alabama. mississippi, right along interstate 55, looking at snow there. the snow has to go somewhere, and as we move throughout the afternoon, we'll start to see more of that coming down. we take you through, noon time, notice it will affect alabama, people in georgia, they want to know will we see snow down here? looks like the better timing, later into the evening hours. 5:00, but i want to point out to you for eastern parts of kentucky, and as well as parse of tennessee, along the appalachians, that's where we'll see the heaviest snowfalls. some